Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. An adaptive parallax adjustment method for a virtual reality display device, comprising: obtaining pupil distance information of a user; adjusting a position of a to-be-displayed image on a display screen according to the pupil distance information; calculating anti-distortion parameters; performing an anti-distortion process according to the anti-distortion parameters based on a distortion model; and performing an anti-distortion process on the to-be-displayed image prior to displaying the to-be-displayed image, wherein the pupil distance information of the user is obtained using an eye tracking device; wherein adjusting the position of the to-be-displayed image on the display screen according to the pupil distance information comprises: calculating an offset value of a center position of a left eye image and an offset value of a center position of a right eye image according to the pupil distance information; and adjusting the to-be-displayed image according to the offset value of the center position of the left eye image and the offset value of the center position of the right eye image according to the pupil distance information; wherein calculating the offset value of the center position of the left eye image and the offset value of the center position of the right eye image according to the pupil distance information comprises: determining the center position of the left eye image and the center position of the right eye image according to the pupil distance information in conjunction with a preset pupil distance-lens-screen distance matching relationship; and calculating the offset value of the center position of the left eye image according to the center position of the left eye image and a standard center position of the left eye image corresponding to a standard pupil distance, and calculating the offset value of the center position of the right eye image according to the center position of the right eye image and a standard center position of the right eye image corresponding to the standard pupil distance.
2. The adaptive parallax adjustment method according to claim 1 , wherein adjusting the to-be-displayed image according to the offset value of the center position of the left eye image and the offset value of the center position of the right eye image according to the pupil distance information comprises: shifting a left eye image portion of the to-be-displayed image according to the offset value of the center position of the left eye image; shifting a right eye image portion of the to-be-displayed image according to the offset value of the center position of the right eye image; and displaying the shifted image.
The invention relates to adaptive parallax adjustment in stereoscopic display systems, addressing the problem of misalignment between left and right eye images that can cause visual discomfort or reduced 3D perception. The method dynamically adjusts the display of stereoscopic images based on pupil distance information to ensure proper alignment for the viewer. The system first determines offset values for the center positions of the left and right eye images using the measured pupil distance. These offset values are then applied to shift the respective portions of the to-be-displayed image. The left eye image portion is shifted according to its offset value, while the right eye image portion is shifted according to its corresponding offset value. The adjusted images are then displayed, ensuring that the left and right eye views are properly aligned based on the viewer's interpupillary distance. This adaptive adjustment improves visual comfort and enhances the 3D viewing experience by minimizing parallax errors. The method is particularly useful in head-mounted displays, virtual reality systems, and other stereoscopic display applications where precise image alignment is critical.
3. The adaptive parallax adjustment method according to claim 1 , wherein adjusting the position of the to-be-displayed image on the display screen according to the pupil distance information comprises: calculating an offset value of a center position of a left eye image and an offset value of a center position of a right eye image according to the pupil distance information; determining an image center of a new stereoscopic space according to the offset value of the center position of the left eye image and the offset value of the center position of the right eye image; shifting the to-be-displayed image based on the image center of the new stereoscopic space; and displaying the shifted image.
This invention relates to adaptive parallax adjustment in stereoscopic display systems, addressing the challenge of optimizing 3D viewing experiences by dynamically aligning displayed content with a user's pupil distance. The method calculates offset values for the center positions of left and right eye images based on detected pupil distance information. These offsets are used to determine a new image center for the stereoscopic space, which adjusts the spatial relationship between the left and right eye views. The displayed image is then shifted according to this new center, ensuring proper parallax alignment for the user's specific eye separation. This dynamic adjustment enhances depth perception and reduces visual discomfort in 3D displays by personalizing the stereoscopic presentation to the viewer's unique interpupillary distance. The technique is particularly useful in virtual reality, augmented reality, and 3D display applications where maintaining accurate depth cues is critical for immersion and comfort.
4. The adaptive parallax adjustment method according to claim 1 , wherein the preset pupil distance-lens-screen distance matching relationship corresponds to a pupil center of a single eye, a lens center corresponding to the single eye and a screen center are in a straight line.
This invention relates to adaptive parallax adjustment in display systems, particularly for optimizing viewing angles in virtual reality (VR) or augmented reality (AR) devices. The core problem addressed is ensuring accurate parallax alignment between a user's eye, the display lens, and the screen to enhance visual comfort and reduce distortion. The method involves dynamically adjusting the parallax based on a preset relationship between pupil distance and lens-screen distance. Specifically, the adjustment ensures that the center of a single eye's pupil, the corresponding lens center, and the screen center are collinear. This alignment minimizes visual discrepancies caused by misalignment, improving depth perception and reducing eye strain. The system may include a tracking mechanism to monitor the user's pupil position and a control module to adjust the lens or screen position accordingly. The preset matching relationship is pre-calibrated to account for variations in user anatomy and device positioning. By maintaining this alignment, the method ensures consistent visual quality across different viewing angles and distances, enhancing the overall immersive experience in VR/AR applications. The adaptive nature of the system allows for real-time adjustments, accommodating natural head movements and ensuring sustained visual comfort.
5. A virtual reality display device, comprising: a pupil distance detection device configured to obtain pupil distance information of a user; a processor; and a memory having programs stored therein: wherein the processor executes the programs to: receive the pupil distance information of the user, wherein the pupil distance information of the user is obtained using an eye tracking device; adjust a position of a to-be-displayed image on a display screen according to the pupil distance information; calculate an offset value of a center position of a left eye image and an offset value of a center position of a right eye image according to the pupil distance information; adjust the to-be-displayed image according to the offset value of the center position of the left eye image and the offset value of the center position of the right eye image according to the pupil distance information; determine the center position of the left eye image and the center position of the right eye image according to the pupil distance information in conjunction with a preset pupil distance-lens-screen distance matching relationship; calculate the offset value of the center position of the left eye image according to the center position of the left eye image and a standard center position of the left eye image corresponding to a standard pupil distance, and calculating the offset value of the center position of the right eye image according to the center position of the right eye image and a standard center position of the right eye image corresponding to the standard pupil distance, and perform an anti-distortion process on the to-be-displayed image prior to displaying the to-be-displayed image.
Virtual reality (VR) display devices often struggle to provide optimal visual comfort and clarity for users with varying pupil distances, as fixed display configurations can lead to misalignment and distortion. This invention addresses the problem by dynamically adjusting the display based on real-time pupil distance measurements to enhance visual quality. The device includes an eye tracking system to detect the user's pupil distance and a processor that processes this data. The processor adjusts the position of the displayed image on the screen by calculating offset values for the left and right eye images based on the detected pupil distance. These offset values determine the center positions of the left and right eye images, which are then adjusted relative to standard positions corresponding to a predefined pupil distance. The system also applies an anti-distortion process to the image before display to minimize visual artifacts. By dynamically aligning the displayed content with the user's pupil distance, the device improves visual comfort, reduces eye strain, and enhances the overall VR experience. The system ensures that the left and right eye images are properly positioned, even as the user's pupil distance changes, maintaining optimal stereoscopic viewing conditions. This approach leverages real-time eye tracking and computational adjustments to deliver a more immersive and comfortable VR experience.
6. The virtual reality display device according to claim 5 , wherein the processor is configured to: shift a left eye image portion of the to-be-displayed image according to the offset value of the center position of the left eye image; shift a right eye image portion of the to-be-displayed image according to the offset value of the center position of the right eye image; and display the shifted image.
Virtual reality (VR) display devices present stereoscopic images to create immersive 3D visual experiences. A common challenge in VR systems is ensuring accurate alignment of left and right eye images to prevent visual discomfort or distortion, particularly when the user's head moves or when the display hardware introduces misalignment. This invention addresses this issue by dynamically adjusting the positions of the left and right eye image portions within the displayed image to correct for positional offsets. The system includes a processor that processes a to-be-displayed image, which consists of separate left and right eye image portions. The processor calculates offset values for the center positions of the left and right eye images, which may be determined based on user head tracking data, display calibration, or other alignment factors. The left eye image portion is then shifted according to its calculated offset value, and the right eye image portion is similarly shifted according to its own offset value. The shifted image, now with corrected alignment, is displayed to the user. This adjustment ensures that the left and right eye images are properly aligned, reducing visual discomfort and improving the overall VR experience. The system may be integrated into VR headsets, glasses, or other stereoscopic display devices.
7. The virtual reality display device according to claim 5 , wherein the processor is configured to: calculate an offset value of a center position of a left eye image and an offset value of a center position of a right eye image according to the pupil distance information; determine an image center of a new stereoscopic space according to the offset value of the center position of the left eye image and the offset value of the center position of the right eye image; shift the to-be-displayed image based on the image center of the new stereoscopic space; and display the shifted image.
This invention relates to virtual reality (VR) display devices, specifically addressing the challenge of optimizing image alignment for users with varying pupil distances. The device includes a processor that adjusts the display of stereoscopic images to improve visual comfort and reduce eye strain. The processor calculates offset values for the center positions of left and right eye images based on pupil distance information, which may be obtained from user input or eye-tracking sensors. Using these offset values, the processor determines a new image center for the stereoscopic space, effectively shifting the displayed images to align with the user's natural eye spacing. This adjustment ensures that the left and right eye images are properly converged, reducing visual discomfort and enhancing the immersive experience. The device dynamically adjusts the image display in real-time, accommodating different users without manual calibration. This solution is particularly useful in VR headsets where precise image alignment is critical for prolonged use and user comfort.
8. The virtual reality display device according to claim 5 , wherein the preset pupil distance-lens-screen distance matching relationship corresponds a pupil center of a single eye, a lens center corresponding to the single eye and a screen center are in a straight line.
A virtual reality (VR) display device is designed to optimize visual comfort and clarity by aligning optical components with the user's eye geometry. The device includes a display screen, lenses, and a mounting structure that positions the lenses at a specific distance from the screen based on the user's interpupillary distance (IPD). The key innovation involves a preset matching relationship between the pupil distance (IPD) and the lens-to-screen distance, ensuring that for each eye, the pupil center, lens center, and screen center are collinear. This alignment minimizes optical distortion and eye strain by reducing off-axis viewing angles. The device may also include adjustable mechanisms to fine-tune the lens position relative to the screen, accommodating variations in user anatomy. The system enhances immersion and visual fidelity in VR applications by maintaining precise optical alignment, addressing common issues like blur, distortion, and discomfort in extended use. The technology is particularly relevant for head-mounted displays (HMDs) where accurate optical alignment is critical for performance.
9. The virtual reality display device according to claim 5 , wherein a size of the screen for displaying binocular images in the virtual reality display device is larger than a size of the field of view formed by a lens in the virtual reality display device.
This invention relates to virtual reality (VR) display devices designed to enhance visual immersion by optimizing the relationship between screen size and the field of view (FOV) provided by the device's lenses. A common challenge in VR systems is ensuring that the display screen is large enough to provide a wide FOV without causing distortion or discomfort to the user. The invention addresses this by incorporating a screen that is physically larger than the FOV formed by the lenses. This configuration allows the screen to cover a broader area, reducing edge distortion and improving image clarity across the entire viewing area. The lenses in the device are positioned to focus on a central portion of the larger screen, effectively utilizing the expanded display area to enhance visual quality while maintaining a comfortable and immersive experience. The design may also include additional features such as adjustable lens positioning or dynamic screen scaling to further optimize the viewing experience based on user preferences or environmental conditions. By ensuring the screen exceeds the FOV formed by the lenses, the invention minimizes peripheral distortion and maximizes the effective use of the display area, resulting in a more realistic and engaging VR experience.
10. A non-transitory computer-readable medium having computer-executable instructions stored thereon, wherein the executable instructions are executed by a processor to perform an adaptive parallax adjustment method, wherein the adaptive parallax adjustment method comprises: obtaining pupil distance information of a user; adjusting a position of a to-be-displayed image on a display screen according to the pupil distance information; performing an anti-distortion process on the to-be-displayed image prior to displaying the to-be-displayed image, wherein the pupil distance information of the user is obtained using an eye tracking device; wherein adjusting the position of the to-be-displayed image on the display screen according to the pupil distance information comprises: calculating an offset value of a center position of a left eye image and an offset value of a center position of a right eye image according to the pupil distance information; and adjusting the to-be-displayed image according to the offset value of the center position of the left eye image and the offset value of the center position of the right eye image according to the pupil distance information; wherein calculating the offset value of the center position of the left eye image and the offset value of the center position of the right eye image according to the pupil distance information comprises: determining the center position of the left eye image and the center position of the right eye image according to the pupil distance information in conjunction with a preset pupil distance-lens-screen distance matching relationship; and calculating the offset value of the center position of the left eye image according to the center position of the left eye image and a standard center position of the left eye image corresponding to a standard pupil distance, and calculating the offset value of the center position of the right eye image according to the center position of the right eye image and a standard center position of the right eye image corresponding to the standard pupil distance.
This invention relates to adaptive parallax adjustment for stereoscopic displays, addressing the problem of visual discomfort caused by mismatched parallax effects due to varying user pupil distances. The system uses an eye tracking device to obtain real-time pupil distance information of a user. Based on this data, the system adjusts the position of a to-be-displayed stereoscopic image on a display screen to optimize the viewing experience. The adjustment involves calculating offset values for the center positions of left and right eye images by comparing the user's pupil distance to a standard pupil distance using a preset matching relationship between pupil distance, lens distance, and screen distance. The system then applies these offset values to shift the left and right eye images accordingly. Additionally, an anti-distortion process is performed on the images before display to ensure visual quality. This adaptive approach dynamically compensates for individual differences in pupil distance, reducing eye strain and improving 3D viewing comfort. The method is implemented via computer-executable instructions stored on a non-transitory medium and executed by a processor.
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February 25, 2020
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